scholarly journals Zinc and Copper Recovery from Smelter Waste Stream Case Study

2017 ◽  
Author(s):  
Frank Su ◽  
Songlin Ye
Keyword(s):  
Copper Recovery ◽  
Waste Stream

A Life-Cycle Based Approach to the Remanufacturing Printing Supplies in Shanghai

2014 ◽  
Vol 878 ◽  
pp. 57-65 ◽  
Author(s):  
Yuan Zhou ◽  
Jing Wei Wang ◽  
Jian Feng Bai ◽  
Wen Jie Wu
Keyword(s):  
Life Cycle ◽  
Raw Materials ◽  
External Environment ◽  
Waste Stream ◽  
Environmental Loads ◽  
Pollution Emission ◽  
Great Pressure ◽  
Acidification Potential ◽  
Toner Cartridge

With the fast growing of printing supplies industry in Shanghai, it creates a large waste stream of obsolete printing supplies and causes great pressure on the environment. The information of remanufacturing printing supplies in Shanghai is gathered and waste stream is analyzed. As a case study of original toner cartridge and remanufacturing toner cartridge is compared in the context of life cycle methodology. The results show raw materials, energy consumption and pollution emission of the remanufactured toner cartridge are less than these of original toner cartridge. Environmental loads equitant including global warming potential, acidification potential, photo-oxidant formation potential, solid waste and fume from remanufacturing toner cartridge are cut 3.61%, 3.84%, 15.24% and 22.52% comparing to original toner cartridge. Its significance is that remanufacturing printing supplies can be more profitable and less harmful to the external environment than conventional manufacturing process. It also discusses strategies for lowering the environmental burden to promote the remanufacturing printing supplies in Shanghai.

Enhancement of copper recovery by acid leaching of high-mud copper oxides: A case study at Yangla Copper Mine, China

2018 ◽  
Vol 202 ◽  
pp. 321-331 ◽  
Author(s):  
Shenghua Yin ◽  
Leiming Wang ◽  
Aixiang Wu ◽  
Michael L. Free ◽  
Eugie Kabwe
Keyword(s):  
Acid Leaching ◽  
Copper Oxides ◽  
Copper Recovery ◽  
Copper Mine

Biomethane Potential and Physicochemical Characterization of Vinasse: A Case-Study for the Waste Stream from Cassava-Based Ethanol Distillery

2021 ◽  
Author(s):  
Taiwo Hassan Ibrahim ◽  
Julius Olusegun Oyedele ◽  
Eriola Betiku ◽  
Bamidele Ogbe Solomon ◽  
Samuel Olatunde Dahunsi ◽  
...  
Keyword(s):  
Physicochemical Characterization ◽  
Waste Stream ◽  
Biomethane Potential

Process integration for industrial water reuse: A case study from a Brazilian biodiesel commercial plant

2015 ◽  
Vol 6 (1) ◽  
pp. 125-131
Author(s):  
Carina Siqueira de Souza ◽  
Silvio Alexandre Beisl Vieira de Melo ◽  
Fernando Luiz Pellegrini Pessoa
Keyword(s):  
Water Reuse ◽  
Process Integration ◽  
Waste Stream ◽  
Flow Diagram ◽  
Industrial Plant ◽  
Process Flow Diagram ◽  
Operation Conditions ◽  
Commercial Plant ◽  
Operation Cost

This paper presents a case study of process integration for a Brazilian biodiesel commercial plant water reuse by using the P+WATER method coupled with Water Sources Diagram (WSD). The process flow diagram of biodiesel plant was simulated considering different operation conditions for transesterification unit, the biodiesel refining unit, and the glycerol recovery unit. WSD was employed to select the main scenarios of waste stream reuse. Statistical techniques were applied to assess the operation cost of each scenario and the respective opportunity to reduce the water consumption by water reuse. The most promising scenarios of waste stream reuse were compared using the P+WATER method to evaluate the opportunity of being really introduced in the industrial plant.

Applying Best Practical Environmental Optioneering (BPEO) to a Complex Clean Up Programme: A Ponds and Silos Case Study

2009 ◽  
Author(s):  
Simon Candy
Keyword(s):  
Decision Making ◽  
Nuclear Waste ◽  
Informed Decision ◽  
Nuclear Industry ◽  
Waste Stream ◽  
Informed Decision Making ◽  
Nuclear Wastes ◽  
Waste Streams ◽  
Selection Of

The use of Best Practical Environmental Optioneering (BPEO) has long been part of informed decision making within the Nuclear Industry. However, BPEO has typically been applied to specific and discrete objectives, for example the selection of a technology to treat a particular nuclear waste stream. While this has sometimes been extended to cover a number of objectives, no one had applied BPEO to a programme of the size and complexity of that associated with Legacy Ponds & Silos at Sellafield. The programme, spanning more than 30 years, includes a range of different objectives covering ongoing management, recovery, conditioning, storage and ultimately disposal of nuclear wastes. This range of activities is applied across a number of facilities containing multiple, significant waste streams. This paper explains how BPEO was applied to the Legacy Ponds & Silos programme and discussed some of the learning resulting from that exercise.

scholarly journals Copper Recovery Through Smelter Slag Flotation in Atacama, Chile: An Industrial Case Study

2021 ◽  
Vol 41 (1) ◽  
pp. e84162
Author(s):  
Osvaldo Pavez ◽  
Pablo Herrera ◽  
Miguel González ◽  
Oscar Rivera
Keyword(s):  
Copper Slag ◽  
Copper Smelter ◽  
Copper Recovery ◽  
Processing Capacity ◽  
Industrial Case Study ◽  
Mineralogical Characterization ◽  
Physical Chemical ◽  
Sulfide Ore

Copper slag flotation was studied on an industrial scale at a concentrator plant in the region of Atacama, Chile. This study consisted of the physical, chemical, and mineralogical characterization of the copper slag, along with preliminary flotation tests. This article focuses on industrial flotation, which consisted of two oneyear campaigns (2016 and 2017). The first campaign was carried out using an existing copper slag flotation circuit in the plant. During the second campaign (2017), a circuit for sulfide ore flotation with an additional columnar flotation cleaning stage was evaluated. Results showed an improvement in metallurgical parameters on the second campaign (including improvements in processing capacity, concentrate copper grade, and metallurgical recovery). From the industrial copper slag flotation campaigns, it was concluded that it is possible to obtain a commercialquality copper concentrate, suitable for further processing in a copper smelter. This mitigates certain environmental impacts of copper processing.

REMOVING MAXIMUM KITCHEN ORGANICS FROM THE WASTE STREAM: A CASE STUDY

2003 ◽  
Vol 30 (2) ◽  
pp. 159-175 ◽  
Author(s):  
RUTH B. MCKAY ◽  
KAREN BUCK
Keyword(s):  
Waste Stream
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